I recently bought two boxed sets of Ambots for Games Workshop's Necromunda game. These multi-part plastic kits are very detailed and look very impressive when built and painted. Ambots can be hired by any gang in Necromunda.
You get two Ambots in the box, which come in different poses with a selection of options like heads and underarm weapons. The red and blue Ambots were built as per their instructions. As were the yellow and green ones but on these two I clipped off their pincers. Also, I left off the big right arm shoulder pad from all of them. It didn't look right to me. Just one of these is a very tough fighter in Necromunda with high stats across the board. However, not surprisingly, they are expensive.
The boxed set of two 40mm tall Ambots cost £25.00 if you are stupid enough to buy them from Games Workshop (greedy bastards!). I bought mine for £19.88 per box from Wayland Games. Element Games sell them for £21.25.
Although I primarily bought them to use in Necromunda, I also plan on using them in The Robot Wars for my upcoming Judge Dredd campaign. I plan on using them as Heavy Metal Kids in the scenario, although technically speaking, they should be twice as tall. Size-wise they'd work better as Industrial Robots but the Heavy Metal Kids are such an integral part of the story that I have to include them. Sure, this is a compromise but better this way than not using them.